Stabilization of clayey sand embankment soil using guar gum biopolymer: An eco-friendly solution

This paper presents the geotechnical parameters and stability analysis of a soil blend with guar gum biopolymer for the construction of earthen embankments. A detailed investigation has been conducted using clayey sand soil blended with a guar gum biopolymer. A series of experiments have been carried out with clayey sand blended with guar gum biopolymer at different proportions, i.e., 0.5%, 1%, 1.5%, 2%, and 2.5% by dry weight of the soil. The analysis was done with the stabilized soil of the embankment with guar gum biopolymer, using Fat Lagrangian Analysis of Continua/Slope (FLAC/Slope 7.0) with different heights, i.e., 3 m,4 m,5 m, and 6 m at a slope angle of 30°, and with varying slope angles i.e., 30 ° , 40 ° , 50 ° and 60 ° at a height of 3m to determine the factor of safety (FOS). Guar gum biopolymer is a significant material that not only meets but also exceeds the requirements set forth by IRC 36-2010, showcasing enhanced performance in stabilizing embankments. This eco-friendly approach offers improved strength and stability, making it a valuable solution in civil engineering applications.